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Câte numere impare sunt de la 402 la 887

Răspuns :

 

[tex]\displaystyle\bf\\Numerele~sunt:\\\\403;~405;~407;~409;~...~887\\\\Numarul~de~numere~sunt:\\\\n=\frac{887-403}{2}+1=\frac{484}{2}+1=242+1=243\\\\\boxed{\bf~n=243~de~numere~impare}[/tex]